Curb and gutter form



Jan. 18,1927. T515178 R. M. MOSS ET AL CURB AND GUTTER FORM Filed July5, 1924 Patented Jan. 18, 1927.

ROY M. MOSS AND OSCAR B. PULIS, 0F

MILVJAUKEE, VJISCONSIN, ASSIGNORS TO METAL FORMS CORPORATION, OFIvHLWAUKEE, WISCONSIN, A CORPORATION.

CURB AND GUTTER FORM.

Application filed J'u1y 3,

In the art of curb and gutter forms or molds it has heretofore beenproposed to utilize as essential form or mold elements three main parts,namely, a back rail of substantially the height of the curb or coping,and gutter, a face rail of substantially the depth of the gutter face ofthe curb or coping, and an edge rail whichforms the inner edge portionof the gutter at the pomtwhere the latter will join the pavement. It ISproposed by the present invention to utilize novel means for supportingthese various main parts of a curb and gutter form in rigid interlockedpositions. In previous forms or molds of the type of the invention theface rail has usually been held inplace by inadequate means and it hasbeen found that there is a considerable tendency for this rail to becomedisplaced or to float laterally or upwardly under the pressure of theconcrete disposed between it and the back rail. This tendency must becounteracted, of course, and some crude expedients have been resorted tofor this purpose.

In the present invention We utilize a special form of divider plate andmeans in conjunction therewith for establishing the desired interlockingrelations between the back rail, the face rail, and the edge rail.

Additionally this invention presents spe cific features of novelty inrespect to the means employed for interengaging the several rails abovereferred to whereby to rigidly and firmly maintain them in properworking conditions under practical, conditions of service.

In the accompanying drawings:

Fig. 1 is a perspective view showing a curb and gutter form or moldembodying the principal features of the invention.

Fig. 2 is a vertical transverse sectional view through the form, on theline 2-2 of Figure 1. I

Figure 3 is a plan view, certaln parts shown in section, bringing outmore clearly the coaction of the camming hook with the divider plate andadjacent rail.

Similar reference characters referred to similar parts throughout thefollowing description and in the illustration of the drawings.

Our curb and gutter form may be briefly described as including the backrail 1, which is a rail of considerable height, in fact of a heightequivalent, practically speaking, to

1924. Serial No. 724,139.

the combined height of the curb and coping and the depth of the gutterbase which will be formed by the use of our invention.

This rail is preferably made of a channel having a base flange 2 and atop flange 3 extending outwardly therefrom, the base flange of somewhatgreater area to provide an adequate supporting base for the rail. Theflanges 2 and 3 may be provided at the angles, if desired, with angleirons 4 for a purpose to be hereafter described.

The edge rail 5 by which the inner edge of the gutter section of acombined curb and gutter is formed, is of a construction somewhatsimilar to the back rail 1 in that 2' it is provided with the baseflange 6 and the top flange 7. The body of the rail has an endprotruding male interlocking member 8 applied thereto by rivets orsimilar fastenings.

Suitable means may be employed to anchor the rails 1 and 5 upon thesubgrade on which the curb and gutter are to be laid. Typical means areillustrated in Fig. 1 most clearly as including a stake box 9 riveted tothe base 6 of the rail 5 and to the bodyof said rail as shown at 9 and 9respectively. A stake may pass through a stake opening 10 in the basepart 6 and said stake, designated 11, may be driven into the subgrade tohold the rail 5 in place in a well known manner. To support the rail 5in proper horizontal alignment a wedge 12, also well known as anexpedient used in the art, passes transversely through the stake box 9and engages the stake 11. Any suitable number of the devices 9 and 11may be provided in the length of the rail 5, and at intervals the stakeopenings 10 are provided without any stake box for reception ofauxiliary stakes co-operating with the stakes that are mounted in thestake boxes. The rail 1 may be equipped with stake boxes and stakes insubstantially the same manner as in the rail 5.

The rails 1 and 5 are held rigidly in proper spaced relation by means ofdivider plates, typical one'of which is designated 18, said dividerplate having a vertical extension 13 at one end and being united orinterlocked to the rails 1 and 5 by peculiar locking hooks 1 1. Thehooks 14: comprise bodies having hook cams 15 at one end, the hook camsbeing adapted to be inserted through slots or openings 16 in the rails 1or 5, as the case may be, and by a sort of pivotal camming movement thehook is adapt-ed to be engaged in an opening 17 at the adjacent end ofthe divider plate 13. In this manner the end of the divider plate withwhich a hook 1 1 co-operates is adapted to be cammed or wedged firmlyinto edgewise engagement with the inner adjacent face of the rail 1 or5, as the case may be. The hooks 14 preferably co-act with the plate orplates 13 about centrally between the upper and lower edges of theadjacent end portions of the said plates 13. It may be desirable sometimes to use more than one heck 1%. at an end of the plate 13, but inpractice we have found excellent results of firm interlocking actionobtained by the construction as illustrated.

The divider plate or plates 13 support the face ail 18. This face rail18 has a lower curved flange 18 and an upper flange 18, the lattersubstantially horizontal throughout its whole area. The lower flange 18of the face rail is interlockingly engaged to prevent lateral outwardmovement, or upward floating movement through the provision of a hookarm 19 on the upper edge of the divider plate 13. To firmly clamp theface rail down upon the divider plate or plates 18 in its engagementwith the hook arm or arms 19, I use a special clamp comprising a camlever 20 connected by a pair of links 21 pivoted at 22 to an extension23 projecting upwardly from the vertical extension 13 of the dividerplate 13. The links 21 are adapted to be freely moved to overlap andengage the upper surface of the flange 18 of the rail 18, and when sodisposed the cam lever 20 will be moved downwards so that its camengages the free edge of the flange 18 and firmly clamps the rail 18down upon and interlocked with the divider plate or plates 13.

The angle'irons 4 are slightly spaced from the body portions of therails 1 so that an interlocking extension on an adjacent rail, somewhatlike the member 8 previously described, may engage between the parts 1and 4:, when a series of rails are assembled end to end preliminary tothe molding of a long section of curb and gutter construction. Themember 8 is-adapted to co-operate with members like the members 4carried by an adjacent rail similar to the rail 5. As these connectionsare well known in the art of concrete forms, they need not be furtherset forth. On the ends of the face rail 18 are provided joint plates 24having openings 25 adapted to'receive dowels or pins projecting fromcorresponding joint plates in a matching opposing rail end.

The various rails ofour curb and gutter form may be quickly set up inplace on the subgra de and assembled in rigid interlocked relations bymeans of the divider plate feature 13, the locking hooks 14 and the camlevers 20. lVhen so disposed, as illustrated in 1, we have found ourform or mold apparatus possessed of great rigidity, susceptible of beingreadily knocked down by merely lifting the cam levers 20 and knockingout the locking hooks 14.

7 It is noted that the locking hook means it may be employed in what areknown as sidewalk forms which usually comprise two edge rails similar tothe rails (3 and connected together by means of suitable divider plates.In side-walk forms the hooks 11 connect the edge rails and dividerplates substantially as shown in Figure 1 Having thus described ourinvention what we claim as new and desire to secure by Letters Patent,is:

1. In a curb and gutter form, in combination, a back rail, an edge rail,a divider plate connecting these rails, a face rail mounted on thedivider plate, and means in terlocking said face rail at its upper andlower portions to the divider plate.

2. In a combined curb and gutter form, in combination, a back rail, anedge rail spaced therefrom, a divider plate intermediate the two, meansinterlocking opposite ends of the divider plate to said rails, saiddivider plate having a vertical extension at one end at the inner sideof the back rail, a face rail mounted on the divider plate and engagingan edge of said vertical extension thereof, means intermediate the loweredge of 'the face rail and-divider plate detachably interlocking thesame with respect to the divider plate, and means coacting to hold theupper part of the face rail against said vertical extension of thedivider plate.

3. In a combined curb and gutter form. in combination, a back rail, anedge rail spaced therefrom, a divider plate intermediate thereto, meansinterlocking opposite ends of the divider plate to said rails, saiddivider plate having a vertical extension at one end at the inner sideof the back rail, a face rail mounted on the divider plate and engagingan edge of said vertical extension thereof, and a swinging cam leverattached to the divider plate to swing over the face rail and hold thesame down upon the divider plate.

4.. In a combined curb and gutter form, in combination, a back rail, anedge rail spaced therefrom, a divider plate intermediate there too,means interlocking opposite ends of the divider plate to said rails,said divider plate having a vertical extension at one end at the innerside of the back rail, a face rail mounted on the divider plate andengaging an edge of said vertical extension thereof, a swinging camlever attached to the divider plate to swing over the face rail and holdthe same down upon the divider plate, together Witha hook arm carried bythe di- Utl vider plate to engage the base of the face rail and maintainsuch engagement under the action of the swinging cam lever.

5. In a combined curb and gutter form, in combination, a back rail, anedge rail spaced therefrom, a divider plate intermediate thereto, meansconnecting opposite ends of the divider plate to said rails, saiddivider plate having a vertical extension at one end at the inner sideof the back rail, a face rail mounted on the divider plate and engagingan edge of said vertical extension thereof, the face rail embodying anupper flange and a. lower flange, the divider plate having an integrallocking arm engaging the base flange of the face rail, and a deviceagainst the extension of the divider plate det-achably engaging the facerail whereby to hold said parts in position.

6. In combination, a back rail, an edge rail, a divider plate having itsends abutting with the inner faces of said rails, and means connectingthe divider plate and rails, consisting of locking hooks loosely passingthrough the rails and having cam hooks adapted for cam engagement withthe adj acent end of the divider plates.

7. In combination, a back rail, an edge rail, a divider plate having itsends abutting with the inner faces of said rails, and means connectingthe divider plate and rails, consisting of locking hooks loosely passingthrough the rails and having cam hooks adapted for cam engagement withthe adjacent end of the divider plates, the said look ing hookscomprising flat bodies passing through the rails, and the divider platehaving openings in its ends in which the hooks may engage and have acamming action on the divider plate and rails to draw the same together.

8. In combination, curb and gutter mold main parts consisting of a backrail, an edge rail, a divider plate, having its ends abutting the innerfaces of said rails, a face rail supported on said divider platedetachable connections between the ends of the divider plate and theback and edge rails, and detachable connections between the upper andlower portions of the face rail and the divider plate substantially asset forth.

9. In combination, an edge rail, a divider plate having an end thereofabutting the inner face of said edge rail and detachable connectingmeans between the plate and rail including a locking hook hooked intothe end of the divider plate and having a camming action thereon, saidlocking hook being passed through and engaged with said edge rail.

10. In combination, an edge rail, a divider plate having an end thereofabutting against a face of the edge rail, a locking hook passing throughthe edge rail and having engagement with the latter, the divider platebeing formed with an opening in which the said hook engages, the hookbeing so formed as to have a camming engagement against said dividerplate at the opening aforesaid.

11. In a curb and gutter form, in combi nation, a back rail, an edgerail, a divider plate connecting these rails and having a verticalextension at one end, a face rail mounted on the divider plate so thatit engages the inner vertical edge of the vertical extension aforesaid,said divider plate having means adjacent to the bottom of the ver ticalextension establishing an interlock between the divider plate and thelower edge of the face rail, and means to interlock the upper edge ofthe face rail with the upper end portion of said vertical extension.

12. In combination, curb and gutter mold main parts consisting of a backrail, an edge rail spaced therefrom, a divider plate transversely tosaid rails and having its ends abutting the inner faces thereof, saiddivider plate being formed with a vertical extension at the end adjacentto the back rail, said divider plate having also a hook arm on its upperedge near the base of the said extension, a face rail supported 0n thedivider plate, detachable connections between the ends of the dividerplate and the back and edge rails, the face rail being mounted so thatits lower portion is engaged with the hook arm of the divider plate, anda member coacting with the upper part of the face rail to hold the samefirmly against the said vertical extension of the divider plate byconjoint action with the hook arm previously referred to.

In testimony whereof we afiix our signatures.

ROY M. MOSS. OSCAR B. PULIS.

